EP2648309A3 - Comb-structured shielding layer and wireless charging transmitter thereof - Google Patents

Comb-structured shielding layer and wireless charging transmitter thereof Download PDF

Info

Publication number
EP2648309A3
EP2648309A3 EP12180715.0A EP12180715A EP2648309A3 EP 2648309 A3 EP2648309 A3 EP 2648309A3 EP 12180715 A EP12180715 A EP 12180715A EP 2648309 A3 EP2648309 A3 EP 2648309A3
Authority
EP
European Patent Office
Prior art keywords
comb
shielding layer
wireless charging
area
structured shielding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12180715.0A
Other languages
German (de)
French (fr)
Other versions
EP2648309A2 (en
EP2648309B1 (en
Inventor
Frank Scholz
Stefan Graf
Andre Waldschmidt
Lars Lindenstruth
Marco Jung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Molex CVS Dabendorf GmbH
Lite On Technology Corp
Original Assignee
Novero Dabendorf GmbH
Lite On Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Novero Dabendorf GmbH, Lite On Technology Corp filed Critical Novero Dabendorf GmbH
Publication of EP2648309A2 publication Critical patent/EP2648309A2/en
Publication of EP2648309A3 publication Critical patent/EP2648309A3/en
Application granted granted Critical
Publication of EP2648309B1 publication Critical patent/EP2648309B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
    • H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
    • H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
    • H05K1/0224—Patterned shielding planes, ground planes or power planes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
    • H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
    • H05K1/0224—Patterned shielding planes, ground planes or power planes
    • H05K1/0227—Split or nearly split shielding or ground planes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0075—Magnetic shielding materials
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/20—The network being internal to a load
    • H02J2310/22—The load being a portable electronic device
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09218—Conductive traces
    • H05K2201/09254—Branched layout

Abstract

A comb-structured shielding layer and a wireless charging transmitter thereof are provided. The wireless charging module is connected to a power source, has at least one wireless charging coil and at least one comb-structured shielding layer, and is configured to convert alternative current power from the power source to H-field electromagnetic radiations, and wirelessly charges an electronic device. The comb-structured shielding layer is disposed between the wireless charging module and the target electronic device and configured to allow the H-field electromagnetic radiations pass through. The comb-structured shielding layer includes a first area and a second area. The first area is electrically connected to a reference electric potential. The second area is electrically connected to the reference electric potential through the first area, and is configured to shield the E-field electromagnetic radiations but allow the H-field electromagnetic radiations pass through the comb-structured shielding layer.
EP12180715.0A 2012-04-03 2012-08-16 Comb-structured shielding layer and wireless charging transmitter thereof Active EP2648309B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201261619427P 2012-04-03 2012-04-03

Publications (3)

Publication Number Publication Date
EP2648309A2 EP2648309A2 (en) 2013-10-09
EP2648309A3 true EP2648309A3 (en) 2018-01-03
EP2648309B1 EP2648309B1 (en) 2019-04-17

Family

ID=47257359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12180715.0A Active EP2648309B1 (en) 2012-04-03 2012-08-16 Comb-structured shielding layer and wireless charging transmitter thereof

Country Status (5)

Country Link
US (1) US9192080B2 (en)
EP (1) EP2648309B1 (en)
JP (1) JP2013214705A (en)
KR (1) KR20130112738A (en)
CN (1) CN103369938B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9161481B2 (en) * 2012-09-13 2015-10-13 Visteon Global Technologies, Inc. E-field shield for wireless charger
DE102013216753A1 (en) * 2013-08-23 2015-02-26 Novero Dabendorf Gmbh Device and method for combined signal transmission or for combined signal and energy transmission
USRE49437E1 (en) 2014-09-30 2023-02-28 Apple Inc. Audio driver and power supply unit architecture
CN111405418B (en) 2014-09-30 2022-11-04 苹果公司 Loudspeaker with reduced audio coloration caused by reflections from surfaces
US9837847B2 (en) * 2014-10-28 2017-12-05 Lite-On Technology Corporation Wireless charging transmitter and method thereof
KR102210514B1 (en) 2015-09-11 2021-02-02 삼성전자주식회사 Wireless power receiver and wireless power transmitter
US20170084991A1 (en) * 2015-09-17 2017-03-23 Qualcomm Incorporated Wireless power transfer antenna having a split shield
US10424962B2 (en) 2015-09-30 2019-09-24 Apple Inc. Charging assembly for wireless power transfer
US10911863B2 (en) 2016-09-23 2021-02-02 Apple Inc. Illuminated user interface architecture
US10631071B2 (en) 2016-09-23 2020-04-21 Apple Inc. Cantilevered foot for electronic device
SG10201708314TA (en) * 2016-10-28 2018-05-30 Gen Electric System and method for actively controlling output voltage of a wireless power transfer system
US10561049B2 (en) * 2016-10-28 2020-02-11 Integrated Device Technology, Inc. Interference filter for wireless power transfer systems
WO2018169206A1 (en) * 2017-03-14 2018-09-20 엘지이노텍(주) Wireless charging device
KR102499112B1 (en) * 2018-04-09 2023-02-13 삼성전자 주식회사 Electronic device equipped with flexible display and method for wireless charging thereof`
CN110829621A (en) * 2018-08-09 2020-02-21 法雷奥舒适驾驶助手公司 Wireless charging device and method for controlling wireless charging device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334800A (en) * 1993-07-21 1994-08-02 Parlex Corporation Flexible shielded circuit board
US20080265835A1 (en) * 2007-04-26 2008-10-30 Visteon Global Technologies, Inc. Wireless power transfer system
KR20100133557A (en) * 2009-06-12 2010-12-22 정춘길 Non-contact charging system for vehicle and charging control method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56108218A (en) * 1980-01-31 1981-08-27 Nec Corp Transformer with shield against electrostatic charge
JP2002170725A (en) * 2000-11-30 2002-06-14 Toko Inc Power supply unit
JP2008269837A (en) * 2007-04-17 2008-11-06 Shimadzu Corp High-frequency induction heating device
US8055274B2 (en) * 2007-11-12 2011-11-08 Lg Electronics Inc. Portable terminal
US8559186B2 (en) * 2008-04-03 2013-10-15 Qualcomm, Incorporated Inductor with patterned ground plane
US9161484B2 (en) * 2010-09-26 2015-10-13 Access Business Group International Llc Selectively controllable electromagnetic shielding
US9161481B2 (en) * 2012-09-13 2015-10-13 Visteon Global Technologies, Inc. E-field shield for wireless charger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334800A (en) * 1993-07-21 1994-08-02 Parlex Corporation Flexible shielded circuit board
US20080265835A1 (en) * 2007-04-26 2008-10-30 Visteon Global Technologies, Inc. Wireless power transfer system
KR20100133557A (en) * 2009-06-12 2010-12-22 정춘길 Non-contact charging system for vehicle and charging control method thereof

Also Published As

Publication number Publication date
EP2648309A2 (en) 2013-10-09
KR20130112738A (en) 2013-10-14
CN103369938B (en) 2016-08-24
CN103369938A (en) 2013-10-23
JP2013214705A (en) 2013-10-17
US20130257366A1 (en) 2013-10-03
EP2648309B1 (en) 2019-04-17
US9192080B2 (en) 2015-11-17

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